Sole-laying machine



Jan. zo, 1931. R. RUHR Em. 1,789,599

' soLE LAYING MACHINE Filed'Dec. 3, 1928 5 Sheets-Sheet 1 Jan. 20, 1931.n R. RUHR ET AL 1,789,599

. SOLE LAYING MACHINE K Filed Dec. 5. 1928 y 5 Sheets-Sheet 2 Jan. 2o,`1931. R. RUHR ET Al. 1,789,599

I soLE LAYING Vlm'cJ'HI'NIF:v

Filed Dec. 5, 1928 5 Sheets-Sheet 3 Jan. 20, 1931. R. RUHR ET ALA1,789,599

SOLE LAYING MACHINE Filed nec. 5. 1928 5 Smets-sheet 4 Jan. 20, 1931. R.RUHR E1' AL SOLE LAYING MACHINE Filed Deo.

Patented Jan. 20, 11931,.

- UNITED STATES PArENroFr-lca RICHARD EUHR; or oFFENBAcH-oN-THE-MarmmnHEINRICHI LUDWIG HECKMANN,

F. FRANKFORT-ON-THE-MAIN, GERMAN Y, ASSGNORS TO yTHE FIRM OF MASCHINEN-FABRIK MOENUS AKTIENGESELLSCHAFT, 0F FRANKFORT-ONTHEMAIN, GERMANY 4 V .I

soLE-LAYING MACHINE sppiicationimea neeember s, 192s, serial Nc.328,507, and in Germany rime 5, 192s.

and more particularly to such presses for cementing outsoles to lastedshoes.. The invention is herein shown as apphedto a revoluble framecarrying a plurality of press-V ing devices.4

The principal object of the present invention is to provide improvedmeans whereby the sole may be properly pressed to the sole of the shoeand conformed thereto with thev least effort of the operator and withthe least loss of time.

In accordance with this object one feature of the invention contemplatesthe provision of new means for supplying compressed air to theinflatable pads allowing the pads to re main in constant communicationwith the source of the compressed air as long as the pads are pressingon the sole. main inflated even if they leak.

Another feature of the invention consists in new means for holding theshoe in working position so as to be easily gripped and released.

l.A further important feature of the invention consists in meansforrotating several alined revoluble frames by a common drive. Between theshafts of the frames means are inserted adapted to couple any one of theframes with the common drive while uncoupling at the same time all otherframes from the driving means.' y

Other featues of the-invention, including certain details ofconstruction and arrangements of parts will be hereinafter described andpointed out in the claims.

In the accompanying drawings,

Fig. 1 is an end-elevation of the machine,

Fig. 2 is a front-elevation of the machine partly in 'section onlysingle pressing devices being shown on the revoluble frames,

Fig. 3 is a longitudinal section of a part of the machine,

Fig. 4 shows'on a greater' scale a part of the Fig. 1 with some parts insection, y

Fig. 5- shows the meansfor locking and` releasing the hold-down partlyin section,

Fig. 'illustrates in-a plan-view the means for coupling the revolubleframes to and uncoupling them from the common Ldrive,

The pads re- Figs. 7 to 9 show the air-controlling valve in three.different positions and in a cross secp Fig. 1() isa vertical sectionalongthe line XX of Fig. 8,

Fig. 11 is a longitudinal vertical section of a cushion mould,

Fig. 12 is a plan view of the mould,

Fig. 13 is a plan view of the air-pad and i Fig. 14 is a longitudinalsection of the same,

Fig. 15 is a plan view of the leather bag for the `air vpad and Figs.'16and 17 are a longitudinal and cross section of the bag respectively,

, Fig. 1.8 is a longitudinal section Vof the adapter,

Fig. 19 is a plan view, and l Fig. 20 a cross section of the adapter.The sole-laying press consists vof severalpressing devices every singlepressing' de-y `v1ce being fastened to an arm land every arm 1 beingscrewed by bolts 3 to a polygonal frame 2 revoluble in a standard 7.

Asall single pressing devices are alike it will sulice to describe oneof them. To the arm v1 is fastened by screws 35 the disk-like.

4 mould 36 adapted to accomodate the aircushionto be described. The4fore-part 36 of the mould 36 can b e adjusted by the screw 37 fordifferent springsrof the shoes.' The part 36 is held by the bolt 38 andthe spring 39 inc'ontact with the' fixed part of the mould 36 to form acontinuous supporting surface for the air-cushion. The line 40 ofcontact 'forms the vpivot-axis for the movable part 36l as the bearingsurface 41 of the lug 41 is c'yl-indrical to the line 40.

The air-cushions consist generally of an 'inflatable rubber-pad 42coveredby a leatherbag. The known 4rubber-pads consist on their hand oftwo substantially flat, oblong parts vulcanized at their margins to`eachother. But we prefer to providea rubber` pad made of one integralpiece'to prevent leakage. If the pad is to be made oftwo parts 42', 42"we arrange the vulcanizing seam across the length of the pad as shown inFigs.. 13, 14 because the length-seam as heretofore made is most liableto become de- The leather-bag consists likewise as a rule of two fiatoblong. parts connected together by a stitch or the like. The stitch is"produced by sewing together the two outturned parts of the bag. When therubber-pad is inflated and the pressure is exerted on the shoe placed onthe cushion the stitch has to withstand a very great tensile stress. Ittherefore happens often that'this stitch as well astlie material betweenthe stitches is torn by the said stress. To avoid this inconvenience wegive to the two parts 43, 44 of the leather-bag a box-like form, seeFigs. 16, 17 and we sew the inturned overlapping edges by a double seam45, 46. One end of the bag is open for the insertion of the pad and maybe closed by a lace passed through the eyelets 47. 4A bag organized asjust described has a greater strength, is easier to manufacture as themargins need not to be turned outward and is of smaller size than theknown bags. The leather-bag has a protective cover 48 the fla-ps 49 ofwhich are sewn to the bag by the seams 45, 46 already mentioned.

Toconform the cushion to the sole of the last to be worked upon aneasily exchangeable adapter may be positioned upon or underneath thecover 48 of the bag. The adapter see Fi s. 18 to 20 consists of two l erf g ay s nected by the hose 76 to the nipple 77 of the 50, 51 of leatheror of a textile fabric. Between theseV layers are incorporated themembers 52, 53, and 54, of which the member 53 is the most important. Ithas two rolls53,

. 53" adapted to press the margins of the sole f member 52 is flat; itis to be used for the against the curved instep of the shoe. The

tread-part of the sole and has several slits 52' allowing the member 52to conform to this part of the sole. The member 54 is to be used for theheel part of the sole.v

The adapterv and the cushion are of the same outline and areaccommodated'as alreadystated in the mould 36. If the mould and the.cushion are of dimensions suitable for large-sizedshoes and small shoesfor instance children shoes are worked upon a boss 55 is likely tobe'produced in the cushion by the air-pressure as indicated in Fig. l1and the rubber-pad is liable to burst at this point. For different sizesof shoes it was hitherto necessary to fasten different moulds`36vby thebolts 3 to the-arms 1. But we provide means allowing to use the same.mould and cushions fordifferent sizes of shoes. To this end the mould36, has a horse-shoe like part 36 preferably extending over and aboveits heel-end. n Under-this 56 may be inserted if small shoes are workedupon. This plate 56 is held downv by thev part 365 as well as bythe-heel-part of the shoe itself.- v v f. \V

With the cushion cooperates a hold-down 57 which engages with the foot58 theheel part. andwith the footh59 the fore-part of the shoe to holdit down while the cushion is part 36 a rigid platen,

vinflated by the compressed-air. The holdi 65 for the toothedslide-block 66. This block 66 has an oblong hole 67 into which engagesthe bolt 68 on the rear-end of the hand-lever 69. The hand-lever 69 ispivoted at 70 in the arm 1, so that b manipulating the handlever 69 theblock' 66 may be moved on its guide-way 65 for locking or releasing thehold-down 57 inasmuch as the lower end of the lever 61 is provided witha tooth 71'for engaging the teeth of the block'66. A spring 72 attached,at 73 to the arm 1 and at 74 to the block 66 tends to keep the latterin its highest position. By lowering the holddown by hand toward theshoe the block 66 automatically rises and locks the hold-down in itsposition. By swinging out the handlever 69 the block 66H is disengagedand the hold-down is released.I The rubber pad 42 has a nipple 75concasing 78 of 'the air-controlling valve 79. The air is supplied byacompressor or any other suitable source Aand .enters into the bore 80 ofthe casing 78 by the hose 20 attached to the nipple 81. It leaves thecasing by the said nipple 77 and the hose 76 for the rubberpad 42. Theslide-valve 79 has three cupleathers 82, 83, 84 and can be given by thehandle 85 which is a prolongationof the shank 86 of the valve -athreefold position ywithin the casing 78 thus' affording to the airthree diiferent ways. In the position shown lin Fig. 7 the compressedair passes through the annular chamber 87 between the cups 83, 84 andthrough the ports 88 into the nipple 77 leadin to the air cushion. Thisposition is retaine so long as the shoe is in the working position onthe cushion.' Should the cushion leak fresh air is constantly suppliedto the cushion so that thel leakage does no harm and the shoe is notspoiled by having a A not completely laid or cemented sole. After thesole' is laid and glued the. valve is given y the position shown in Fig.8 putting-the ports 88 1nto communication with theV exhaustports 89. Bythis means the air contained in' the ad 'is allowed toescape whereuponthe "hol -down can be easily released and the shoe can be removed. Inthe case the air contained in the pad is to be cut-off from the airsupply as well as from the exhaust ports the v valvefisgiven theposition shown-in Fig. 9.

The hose 2 0 mentioned above leads from pressing device may journaledinthe bearing central duct by a'hose 20. Butlwe' prefer to connect theslide valve of only one pressing device with the central duct and tosupply the air to the valves of the other pressing devices byinterconnecting the bores 80 of the casingslof all valves. Theinterconnection is eected by providing in every valve-casmg ber may bevaried at will. The frame 2 has screws 6 to a sleeve5 7 of the standard7. he hub 4 abuts on one side of the bearing 7 and the ring 8 of thesleeve 5 abuts on the a hub 4 fastened by other side of the bearing.

- step by step British Specification No. 7417/96. y

wheel 25 has a vcircular path 28 into which ment. On the lright end Thesleeve forms on its hand a' bearing for the short shaft 22. To the lefthand end ofthe shaft 22 is fastened bythe key 26 and the screw-27 theworm-wheel 25 engaged byy the worin-shaft 25. rlhis shaft is driven bythe pulley 92 whenever -the treadle 93 is pressed down and it stopsautomatically after the frame 2 has been rotated for an angle containedbetween two successive arms 1. rl`his movement needs no furtherexplanation as it is -well known with sole laying machines of the kinddescribed in 'Ithe engages the bracket 29 fastened to the standard 7bythe' screw 30.- By this means the shaft k22 is prevented from anaxialdisplaceof the shaft 22 is arranged a coupling member 24freel to slidethereon but rotatable therewith owing to theV The member 24 has recesses24 with the claws 21 of the ofthe hand-lever 34 the key 23. adapted tocooperate sleeve 5. By means claws 21 can be brought into engagementwith .the recesses 24 of the member 24 whereupon the frame 2 with thearms 1 is rotated ,in a step by step movement bythe Worm gear.

A,The Wall of the sleeve 5 has a longitudinal bone closed at the rightend bythe plug 17, see Fig. 3. The same end of the boreV 15 is connectedby the radial opening 18, the nipple 19 and the hose machine alreadydescribed. The left end of the bore 15 communicates by the radialopening 16 with the annular chamber 14 of the` plied through the'opening 16, the bore 15 communicate with the A described .theorganization' fion. All air-pads are empty and to thecasing 78 of thevalve 7 9 of one ofthe'pressing 'devices of the and the opening 18 tothe rubber-pads of the pressing devices. The contacting surfaces of thecasing 10 and of the sleeve 5 are-conical. 'Screw-nuts 11 are providedto assure a tight contact.

The machine so far described may be used as an independent,selfcontained sole laying machine.l But we' have devised` means allowingseveral such machines to be rotated one at a time by the same drive. Tothis end We'place the several machines in alinement.

flhe first machine is organized as described.

The additional machines are of the same construction with the exceptionthat the left ends of their short shafts which are denominated in thiscase by the numeral 31 carry instead of the worm-gear 25 a couplingmember 32 fastened to it by -a pin 33 and adapted to become engaged bythe coupling-member 24 of the preceding machine. T he right end of everyshaft 31 carries like the shaft 22 a coupling member 24.

-It is to be easily'under'stood that to operate the first machine thefirst coupling member 24 must be in engagement with the claws 21 of thesleeve 5 of the first machine. To operate the second machine the firstcouplingmember, 24 is brought into engagement with the coupling member32 of the second machine and into engagement with the claws 21 of thesecond machine. To operate the last machine of the line all membersy 24are in engagement with the respective members 32 except the last member24 which is in engagement with the coupling claws 21 of the lastmachine. At any time one machine only can-be rotated.

Assuming the whole aggregate is at rest and all coupling-members 24 arein a middle osition and engage neither the claws 21 nor the members 32.Now for instance the first machine from the left is t0 operate. Bypressing down the treadle 93'the shaft 22 i-s brought into a stepby stepmovement. By manipulating the first handle 34 the first member 24 is putinto engagement with the claws 21,0f the first machina frame 2 is thusimparted a step by step rotathe valves 79 assume the position shown 1nFig. 8. The

attendant places the shoe and the sole which.

have been provided with an adhesive and are to be cemented togetherintothe pres-sing device just before him and lowers the holddown 57which is automatically locked in its position by the. toothed block 66.He then brings, the valve 79 into position shown in Fig. 7. The/enteringair inflates the pad and conforms and presses the sole to the shoe. Inthe meantime 4the next pressing device the rotating frame 2 comes beforethe attendant who repeats the manipulation just described. After allpressing devices of the first machine have thus been supplied'with shoesthis machine is uncoupled and the second machine is the second-member 24is brought y l To the first ils coupled. This is. done by Swinging thefirst Ahand-lever 3 4 in a clockwise rection andV the second hand-lever34 in an anti-clock'- wise direction. The first lever 34 brings the^oupling-members 24 and 32 into engagement. At the same time this levercomes beneath the dog locks it against brings the neigt l 91 and 24 intoengagement. The shafts 422 and 31 are'therefore positively connected toeach other so that the second to rotate. The second tended to Ain thesame manner as the`fir`st machine. For `operating of the third, machinethe second hand lever 34 is swung in a clockwise and the-third handlever 34 in an anti-clockwise direction. The following machines areoperated in an analogous manner.

rotation. The second lever 34 rlhe 'attendant remains `on `his place.before vthe locking member,

'ing the two-armed lever an every machine. until all its pressingdevices' are supplied with shoes whereu on he proceeds to the nextmachine. A r all machines have been supplied with shoes the at- `endant.returns kto the first machine. The

shoes pressed in the first machine have inl the meantime set, theadhesive has become dry, and fresh shoes may be introduced. To

. this end the iirst coupling member l24 is again movedin ananticlockwise direction. By so doing the first machine is coupled to thedrive while all other machines are stationary. The shoes with the laidsoles the first machine land fresh shoes are placed into the pressing'devices of ,this machine. The further procedure is now,self-explanatory.

We claim: l l

1. Ina sole layin press, a stationary car- Irier, a frame revolu le onthe carrier, a lurality of air pads on the frame, lan ailuct `on theystationary-carrier, an alr duct interconnecting the `air pads on therevoluble frame, a. sin le air 4duct rotating wlth the frame andatirding communication between the duct on the statlona l terconnectingduct von t e revoluble frame,

and avalve associated with every pad operated by a single lever foropemng and closing the passage ofthe air from the interconnecting ductinto the pad.

, 2. In a sole laying press, a statlonary carrier, a frame revolu le onthe earner, a lurality of air pads on the frame, an air uct von thestationary carrier, an-alr duct'lnterads on the l.revoluble uct rotatingwith the connecting the air frame, a sm le alr 35 of the first machineand following coupling members machine begins machlne 1s no w atareremoved from ali lfor all frames,

- other fra carrier and the in" tures.

vitres-ao '3. 'In a sole 'laying press, an air pad, a boxlike, twoartleather cover for the pad, and a protectlve layer on the cover withoverhanging iaps, the margins of the parts of the cover andthe flaps ofthe said protective layer being sewn together by the same seams.

4. In a vsole laymg press, an air pad, a I nd'uld accommodating the airpad, a lhorseshoe-.like border on and over an end of the mould, and aplate to be inserted underneath this-border and ation of the pa atthat'end.

5. In a sole laying press, (pressing 'the sole tothe lasted shoe, aholdown for the shoe, a swinging two armed lever carrying at one end thehold-down, a sliding locking member at the other end of the said lever,a spring tending to bring this member in locking position, a andle f ordisengaging and a s ring for carryd) the hold-down away from the shoe.

6. Ina sole laying` press,a plurality of ali ned revoluble frames, aplurality of airpa s on every frame, a common motor-drive for allframes, and'means for coupling these frames' one at a time to the commonmotordri7ve 1 nasoe1ayin"ress aligned revoluble trainers,

a plurality of airpads on every frame,

-thereon or with the following shaft.

a plurality of a plurality .of air' 'a common motor-drive means forcoupling one of the frames to they common motor-drive, and means forpreventing -the rotation of the mes.

' 9. In a sole layin a leather cover for t 8. In a sole laying press edrevoluble frames, on every frame,

. press, an air pad, and' e pad consisting of two a plurality of I anair pad for I parts sewn'together at their margins, the latter beinganged toward each other and over- Y lapped to forma box-like enclosure,and having a seam on the overlapped bentmargins. ntestilnony whereof weafiix .our signav amalca 'Lunwlc alemana.

lucamvnuun.'

'fra-me and a Ording-communication between the duct on the statlonarycarrler and the 1nterconnecting ducten the revoluble frame,

and a valve associated with every pad operated by a single lever foropemng and closing the passage-of the airfrom 'the interconnect

